This is a brainstorming ticket.

Statement of a problem

This is a spinoff from T223174: [Timebox - 8 hours] Investigation: Watchlist Expiry. We're considering various ways to clear the watchlist table from expired rows. One of the options is to detect that there are expired rows when viewing the watchlist and delete them.

Because DB writes on GET are no bueno, we need something else. I remember hearing that creating new jobs is also not allowed - it this really true? Any other ways?